796770781 has 2 divisors, whose sum is σ = 796770782. Its totient is φ = 796770780.

The previous prime is 796770763. The next prime is 796770827. The reversal of 796770781 is 187077697.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 598242681 + 198528100 = 24459^2 + 14090^2 .

It is a cyclic number.

It is not a de Polignac number, because 796770781 - 2¹⁷ = 796639709 is a prime.

It is a super-2 number, since 2×796770781² = 1269687354910699922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (796770721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398385390 + 398385391.

It is an arithmetic number, because the mean of its divisors is an integer number (398385391).

Almost surely, 2^796770781 is an apocalyptic number.

It is an amenable number.

796770781 is a deficient number, since it is larger than the sum of its proper divisors (1).

796770781 is an equidigital number, since it uses as much as digits as its factorization.

796770781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1037232, while the sum is 52.

The square root of 796770781 is about 28227.1284582757. The cubic root of 796770781 is about 927.0670234206.

The spelling of 796770781 in words is "seven hundred ninety-six million, seven hundred seventy thousand, seven hundred eighty-one".